The spicy collard greens recipe from Food and Wine calls for cooking the greens over moderately high heat for about 30 to 40 minutes. The cook places oil and onions with the greens and also later adds garlic, crushed red pepper and 1/2 teaspoon each of salt and black pepper. The cook then adds tomatoes and cooks further.

The braised and spicy collard greens recipe from the Kitchn calls for cooking the greens with pork. The slow cooker sweet and spicy collard greens requires 1 tablespoon vegetable oil, 1 medium chopped onion, 1 smoked pork hock, 2 packages of collard greens and 1 can of chicken broth. The cook eventually cooks and mixes these and other ingredients together.